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The results from screening 5,597 Australian school children using the Portsea Modified Clinical Technique (PMCT) are presented. The new protocol provides information about visual acuity, refractive status, strabismus, heterophoria, ocular motility, convergence, accommodative facility, fusional vergence facility, stereopsis, colour vision and ocular health.Population statistics have been determined for refraction, heterophoria, convergence insufficiency, accommodative infacility and vergence infacility.The screening results are compared to those from previous studies where possible.

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